81132740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{3217}}^1$

素因数の和:3336

約数の個数: 48

約数和(自身を含む): 185434032

約数和(自身を除く): 104301292

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 194, 260, 388, 485, 970, 1261, 1940, 2522, 3217, 5044, 6305, 6434, 12610, 12868, 16085, 25220, 32170, 41821, 64340, 83642, 167284, 209105, 312049, 418210, 624098, 836420, 1248196, 1560245, 3120490, 4056637, 6240980, 8113274, 16226548, 20283185, 40566370, 81132740]

約数ペア:

[(1, 81132740), (2, 40566370), (4, 20283185), (5, 16226548), (10, 8113274), (13, 6240980), (20, 4056637), (26, 3120490), (52, 1560245), (65, 1248196), (97, 836420), (130, 624098), (194, 418210), (260, 312049), (388, 209105), (485, 167284), (970, 83642), (1261, 64340), (1940, 41821), (2522, 32170), (3217, 25220), (5044, 16085), (6305, 12868), (6434, 12610)]